Trip Reports
Tuesday 23 June – Blaise Castle
July 23, 2015
19 walkers assembled in the Blaise car park on a warm morning after overnight rain. The conditions had encouraged the ant colonies to multiply and Swifts and gulls were massed taking advantage of the flying meal. 90 Lesser Black- backed Gull, 40 Herring Gull and 35 Swift were counted – but the aerial acrobatics made
About BOC
Find out what the BOC does and how it can help you make the most out of your birding around Bristol and further afield.
Find out moreBTO Surveys/Local News
The BTO coordinate volunteer surveys to help monitor bird populations.
Find out moreThe Avon Bird Report
The BOC helps produce the annual Avon Bird Report, which contains a detailed account of all the birds seen in the Bristol region.

Bristol Ornithological Club
The Bristol Ornithological Club (BOC) became a Charity (1205862) in 2023, was founded, in 1966, to promote, encourage and co-ordinate the scientific study of ornithology in all its branches in the Bristol area.
The Aims of the Charity
To advance education for the public benefit in ornithology and matters related to the
conservation of wild birds in particular within Bristol and the surrounding area by:
a. promoting and taking part in local and national studies and surveys,
b. supporting and assisting the conservation and preservation of wild birds and their
habitats through co-operation with local and national organisations
Our full Constitution lays out our Aims and Objectives set around our Policies
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